2.Canadian Transportation and Distribution Management (1869)"The terms of any escalator clause must be clearly defined. The lowest or any
tender not necessarily accepted. WM. ..."

3.Merriam-Webster's Dictionary of English Usage by Inc. Merriam-Webster (1994)"Escalator was used in describing a provision in labor contracts—an “escalator
clause”—allowing for increases in wages and prices to reflect increases in ..."

5.Mechanical World and Engineering Record (1881)"... and long-term capital goods, and in the interim a ceiling should be placed on
the escalator clause. books UK Trading Opportunities ¡,, Central America. ..."